Any program that creates captions from pixel data?

Hello, I'm trying to create a bitmap image such that when output via a composite port it will translate into captions, very similar to this: http://al.robotfuzz.com/generating-teletext-in-software/ except NTSC. I have some ideas but wanted to check if anyone had tried something similar as Google d

Re: Linux equivalent of Windows VBIScope?

osc is perfect, thanks! In my past experience the em28xx driver has been great, but I'll let you know if there are any issues. On Mon, Jul 9, 2012 at 3:49 PM, Devin Heitmueller wrote: > On Mon, Jul 9, 2012 at 5:32 PM, Andy Walls wrote: >> Tim Stowell wrote: >> >>>

Linux equivalent of Windows VBIScope?

Hi all, I am using the em28xx driver and have been able to extract captions using zvbi. I would like to visualize the waveform like the DirectShow VBIScope filter on windows (unfortunately the Windows driver doesn't expose any VBI pins). Does anyone know of anythings similar on Linux? Thanks -- To

Re: Kworld usb 2800D audio

wow, I'm just glad you and other kernel devs take the time to figure all this out! -Tim On Thu, Oct 28, 2010 at 8:51 AM, Devin Heitmueller wrote: > On Thu, Oct 28, 2010 at 10:48 AM, Tim Stowell wrote: >> Ah my bad, I need to read a little deeper it seems :) Thanks for the >

Re: Kworld usb 2800D audio

Ah my bad, I need to read a little deeper it seems :) Thanks for the info, now I'll stop pulling my hair out trying to get non-existent audio. -Tim On Thu, Oct 28, 2010 at 8:45 AM, Devin Heitmueller wrote: > On Thu, Oct 28, 2010 at 10:36 AM, Tim Stowell wrote: >> Thanks for the

Re: Kworld usb 2800D audio

On Thu, Oct 28, 2010 at 8:27 AM, Devin Heitmueller wrote: > On Thu, Oct 28, 2010 at 10:18 AM, Tim Stowell wrote: >> Hi, >> >> I'm able to capture video just fine with my  Kworld usb 2800D usb >> device and the recent (I've installed the April v4l-dvb em28xx

Kworld usb 2800D audio

Hi, I'm able to capture video just fine with my  Kworld usb 2800D usb device and the recent (I've installed the April v4l-dvb em28xx driver), but I can't get any audio. I tried modprobe em28xx-alsa, and the module loads, but alsa can't find any sound cards. Do I need the snd-usb-audio driver? the

em28xx vbi read timeout

Hi, I have a KWorld usb 2800D device and am using the newest em28xx v4l-dvb drivers from linuxtv.org. I'm running Gentoo with a 2.6.31 kernel. The driver compiles fine, and then I issue the following commands: v4lctl setnorm NTSC zvbi-ntsc-cc -c -d /dev/vbio -v after that I just get constant "V